Search for dissertations about: "flexibility"

Showing result 11 - 15 of 1480 swedish dissertations containing the word flexibility.

2. 11. Flexibility – a tool for chirality control in asymmetric catalysis

   Author : Raivis Zalubovskis; Christina Moberg; Alexandre Alexakis; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; flexibility; symmetry; dissymmetry; asymmetric catalysis; chiral ligands; pseudo-C2; pseudo-CS; conformational study; rotation barrier; pyrrolidines; phospholanes; azepines; phosphepines; supramolecular; hydrogenation; allylic alkylation; silaboration; palladium; rhodium; nickel; platinum; iridium.; Organic chemistry; Organisk kemi;

   Abstract : This thesis deals with the design and synthesis of ligands for asymmetric catalysis: palladium catalyzed allylic alkylations, and rho-dium and iridium catalyzed hydrogenations of olefins. Chirally flexible phosphepine ligands based on biphenyl were synthesized and their properties were studied. READ MORE

4. 12. Avoiding greenhouse gas emissions using flexibility in smart thermal grids

   Author : Jay Hennessy; Hailong Li; Justin Chiu; Mälardalens universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; district heating; thermal grids; flexibility; avoided emissions; thermal storage; Energy- and Environmental Engineering; energi- och miljöteknik;

   Abstract : The Paris Agreement on climate change entered into force in 2016 and has been ratified by 193 of the 197 Parties to-date, followed by country targets to cut greenhouse gas emissions, not least through an increasing penetration of renewable energy sources. In its 2021 annual World Energy Outlook, the IEA envisages a Net-Zero Emissions by 2050 scenario (NZE) in which renewables as a percentage of total energy supply increase from around 10% in 2020 to over 65% in 2050 and is reflected by a similar change in the percentage of variable renewables in total generation, thereby increasing the need for system flexibility. READ MORE

5. 13. Contributions to the Metamathematics of Arithmetic: Fixed Points, Independence, and Flexibility

   Author : Rasmus Blanck; Göteborgs universitet; []
   Keywords : HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; arithmetic; incompleteness; flexibility; independence; non-standard models; partial conservativity; interpretability;

   Abstract : This thesis concerns the incompleteness phenomenon of first-order arithmetic: no consistent, r.e. theory T can prove every true arithmetical sentence. The first incompleteness result is due to Gödel; classic generalisations are due to Rosser, Feferman, Mostowski, and Kripke. READ MORE

6. 14. Trading Off between Flexibility and Product Platform Constraints for Effective Technology Introduction

   Author : Iñigo Alonso Fernandez; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Product Development; Systems Engineering; Technology Integration; Model-Based Design; Product Platforms; Flexibility;

   Abstract : Developing product platforms is an established method of reducing internal variety costs while delivering variety to customers.  A critical aspect of a platform, that is expected to be used and extended for many years, is the ability to introduce new technologies and solutions effectively. READ MORE

7. 15. Organizational flexibility and health among line managers and employees in health care

   Author : Sara L. Fallman; Lotta Dellve; Göran Jutengren; Linda Ahlstrom; Dan Hasson; KTH; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; psychosocial working conditions; nurses; flexibility; control; sick leave; leadership; work-related health; longitudinal data; Technology and Health; Teknik och hälsa;

   Abstract : Introduction: Line mangers’ and employees, registered nurses and assistant nurses’, in health care often have a demanding work situation. Sick leave illness and lack of competent staff is a problem. There is a lack of studies on working conditions, such as flexibility and restricted control, from an organizational perspective, (i.e. READ MORE